James fleming



(No Model.)

A J. FLEMING.

APPARATS POR BRUSHING AND SHAPNG SAND GORBS. No. 334,423. PatentedvJan. 19, 1886.

N. PETERS. Phalwmhognphur. wzshlnginn, 0.1:.

UNITED STATES j PATENT OFFICE.

JAMES FLEMING, OF TROY, ASSIGNOR OF ONE-HALF TO HOWARD M. DOUGREY, OF LANSINGBURG, NEW YORK.

APPARATUS FOR BRUSHING AND SHAPING SAND CORES.

SPECIFICATION forming part of Letters Patent No. 334,423, dated January 19, 1886.

Application filed October 3, 1885. Serial No. 178,881. (No model.)

.To all whom it may concern:

Be it known that I, JAMES FLEMTNG, of 72 Federal street, in the city of Troy, county of Rensselaer, State of New York, have invented a new and useful Apparatus forBrushing and Shaping Sand Cores, (Case A,) of which the following is a specification.

My invention relates to improvements in apparatus for shaping and brushing sand lo cores, such as are used for casting interior cylindrical forms of metal, the object and purpose of my invention being to give accuracy to the measurement and adaptability of the forms used, and to facilitate their production.

Accompanying this specication, to form a part of it,there is a plate of drawings containing three figures illustrating my invention, with the same designation of parts by letterreference used in all of them.

Of these illustrations, Figure l shows a side elevation of the apparatus used for brushing and turning up a sand core. Fig. 2 is a plan view of the platform on which the table that sustains the core turns. Fig. 3 is a plan view of the table when turned over and with what is its under side when in position illustrated as turned toward the sight.

The several parts of the apparatus are designated by letter-reference, and the function 3o of the parts is described as follows:

The letter C designates the sand core, made lin the usual way from sand and other material wet with clay-Water, and which has been rammed or pressed into a cylindrical form.

The letter T designates the table whichsupports the core, and R a rack arranged on the under surface and outer edge of the saidtable.

The letter P designates a platform provided with rollers B', arranged in its upper surface 40 to project above it, they having proper shafts and bearings, and being arranged in said platform so that the table T may turn thereon.

The letter P2 indicates a pinion arranged on the shaft S', which has its bearings b in the 4 5 stud d; and the letter D indicates a crank on the end of said pinion-shaft. This pinion is constructed to mesh into the rack of the table T, so that when the crank Dis turned the said table and the core placed thereon is turned also.

The letter E indicates a cap constructed with an upwardly-projected vertical shaft, S2,

the latter having its bearing in an arm, A, the bottom of this cap being provided with a gage-rim, G; and the letter G2 designates a gage-rim arranged on the table T, the function ofthese gage-plates being to determine the diameter of the core at the top and bottom, and to furnish abearing-line for the blade B2,

`which is used in connection with the gageplates, as will be hereinafter described.

The letters a' a2 indicate arms that are pivoted at b2 to the blade B2, and these arms are adapted to be moved back and forth horizontally in the guideways w of the horizontal bracketsee,that areprojected from the frame F.

The letter L designates a crank arranged on the shaft M, the latter having its bearing on the bracket m', projected from the frame F.

The letter d3 indicates a lever-arm arranged on the shaft M at right angles to the crankarm L, and O O indicate two connecting-rods, each of which is at one of its ends pivoted to the arm d3, and at their other ends they are each pivoted to one of the arms a a2.

The core having been pressed so that the material of which it is made is cohesive, and it being arranged ou the table T so as to project on its outer vertical face beyond the gageplate G of the table and G2 of the cap, the crank D is turned and the core caused to rotate by means of the engagement of the pinion P 'with the rack R on the outer rim of the table T, the latter resting on the rollers B of the platform. As the core is thus turned, the

' blade or templet B2 is pressed against the side of the core, and all that part of the latter projecting beyond the gage-plates at the top and bottom is removed, so as to finish up the core in a straight line between the gage-plates at the top and bottom, as shown at Fig. l, when such a finish is required for the outer face of the core. If, however, the core is required to have ribs turned in its outer face, the blade or templet B2 may be shaped so as to turn such ribs into the core as it is rotated, and the blade B2 may be rounded out concavely or rounded inwardly convexly between its ends, so as to produce inthe core side between the end gageplates any concavity or convexi'ty that may be desired, as indicated by the dotted lines d6 shown in the blade-edge, and the blade may be operated to turn off the core by being forced IOO up against the same by means of the crank L, erank-arrn d, and connecting-rods O O, as shown, when eoneavity or eonvexity is to be imparted to the eore sides; or said blade B2 may be held against the core side by hand when the core-lines are straight, as shown, and without eoneavities or eonvexities.

The form to be given to the eore depends upon the form of the gage-plates at the top and bottom of the core, and. these may be round, elliptieally coincident, or made eoineidently with rectangular sides and rounded corners. XVhen used 1n the latter form, the blade or templet Bl is better operated by hand.

"With an apparatus thus arranged and operated, the sand eore is finished up so as to have a true snif-ace, and the work is done rapidly and at much less oost than when done in the usual manner.

Having` thus described my invention, what I claim, and desire to seeure by Letters Patent, 1s

l. In an apparatus for turning and brushing sand Cores, the combination of a platform provided with rollers projected from its upper surface, a table adapted to support the Core, said table being made with a eireular gageplate on its upper surface and outer edge, and a rael; eireumferentially arranged on its under surface, a cap having a vertical bearing and gage-plates adapted to rest on the top of the core, a pinion provided with a crank-shaft and bearing therefor, said pinion being adapted to mesh into said rack, and a nishing-blade o1' templet, all constructed and arranged to be operated substantially as and for the purposes set forth.

2. The combination of the platform l?, eonstructed with rollers B, the table T, made with the gage-plate Gr'l on its outer edge and the rack R on its under surface, the pinion P2, arranged on the crank-shaft S', the eap C, made with the vertical shaft S2 and the gage-plate G', the blade or templet B, the arms a made with g'uideways, and the Connecting-rods O O and the shaft M, having bearings and provided with the erankarm d, said parts being connected and constructed to operate substantially in the manner as and for the purposes set forth.

Signed at Troy, New York, this 29th day of September, 1885, and in the presence of the two Witnesses whose names are hereto written.

JAMES FLEMING.

Witnesses:

XV. E. HAGAN, CHARLES S. BRIN'rNALL. 

